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Detection circuit for displaying power supply management

A detection circuit and power management technology, applied in circuits, transistors, electronic switches, etc., can solve problems such as poor versatility and poor portability of signal detection circuits, and achieve low cost, simple and reliable circuit design, and high portability.

Inactive Publication Date: 2009-12-02
TOP VICTORY ELECTRONICS (FUJIAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the limitations of the prior art, the display power management signal detection circuit in the display monitor adopts a dedicated semiconductor integrated signal detection circuit, and the signal detection circuit has poor portability and poor versatility.

Method used

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  • Detection circuit for displaying power supply management
  • Detection circuit for displaying power supply management

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Embodiment approach

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] figure 1 It is the base block diagram of the detection circuit for displaying power management in the present invention. The line synchronous signal input is converted into a DC level signal through the line clamp circuit 130, and the integral filter circuit 140 performs integral filtering on the DC level signal, and finally the DC level signal can be controlled by the switch control circuit 150, and the voltage output by the switch control circuit 150 is Level is the detection signal; at the same time, the field synchronous signal input is converted into a DC level signal through the field clamp circuit 100, and the integral filter circuit 110 performs integral filtering on the DC level signal, and finally the DC level signal can control the switch control circuit 120, through the switch The detection signal output by the con...

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Abstract

The invention relates to a detection circuit used for displaying power supply management, which comprises a line and field synchronous signal, a line and field clamping circuit, an integrating filter circuit, a switch control circuit and a detection signal. The detection circuit can automatically notify a display monitor to switch the power supply mode into a power supply close energy-saving mode under the condition of not using the display monitor for a time period through detecting the line and filed synchronous input signal, thereby minimizing the power consumption. Meanwhile, when the display monitor is used, the invention can automatically notify the display monitor to be in a normal full speed work mode. The circuit design all adopts separation elements. Compared with the circuit depending on special semiconductor IC integrated circuit, the circuit has simple and reliable design, high transportability, strong universality and low cost.

Description

technical field [0001] The invention belongs to the technical field of display monitors, and generally speaking, relates to a signal detection circuit for a display monitor, which can automatically notify the display monitor to switch the power mode to Switches to a power-off power-saving mode to minimize power consumption, and automatically notifies the display monitor to operate at normal full speed when the display monitor is to be used. Background technique [0002] Usually, when there is no signal input to the display monitor for a period of time, the power supply circuit in the display monitor automatically switches the power mode of the display monitor to the power saving mode until a normal signal is input, thereby saving unnecessary power. Consumption, reduce its power consumption, in order to achieve the purpose of saving energy. Most display monitors on the market today have this capability. [0003] The U.S. Environmental Protection Agency released the "Energy ...

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Application Information

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IPC IPC(8): G09G5/00H03K17/60H03K17/687
Inventor 叶林俊唐瑞庆
Owner TOP VICTORY ELECTRONICS (FUJIAN) CO LTD
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